Backup Error on Moss2007: Object Shared Search Index failed in event OnPrepareBackup, The current operation timed-out after 3600 seconds

If you getting error in spbackup.log file when getting backup like:
Error: Object Shared Search Index failed in event OnPrepareBackup. For more information, see the error log located in the backup directory.
WebException: The current operation timed-out after 3600 seconds
Debug: at Microsoft.Office.Server.Search.Administration.SearchSharedApplication.Microsoft.SharePoint.Administration.Backup.IBackupRestore.OnPrepareBackup(Object sender, SPBackupInformation args) at Microsoft.SharePoint.Administration.Backup.SPBackup.RunPrepareBackup(SPBackupRestoreObject node)

Cause:
When performing a backup of a search application, sometimes the operation for pausing the search application fails. In this case, the backup of the search index cannot continue. In that case, the SSP backup is virtually useless. Pre-SP2, the process of backing up the search database will continue. Post-SP2, the failure to pause the search application during a backup process will also result in failure of backing up the search databases, and the search databases will be marked with the same error as the search index component.
For More info:
http://download.microsoft.com/download/4/1/F/41F3A698-55E8-40B4-A306-AD6CF1F95394/2007%20Office%20Servers%20Service%20Pack%202%20Changes.xlsx

Resolution:
Upgrade to Moss 2007 SP2